The following table shows partial status. A random sample of 1000 individuals aged between 20 to 39 years. Never married Married Divorced Total 20-24 years 224 25-29 years 260 30-34 years 250 35-39 years 230 Total 1000 (3 pts) What is the probability that a randomly selected person is between 25-34 years old and never married? (3 pts) What is the probability that a randomly selected person is between 25-29 years old or divorced? (4 pts) What is the probability that a randomly selected person never married given that the person is between 30-39 years old?
Added by Kimberly F.
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Probability of a randomly selected person being between 25-34 years old and never married: - From the table, we can see that there are 260 individuals aged between 25-34 years old. - Out of these 260 individuals, 224 are never married. - Therefore, the probability Show more…
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A simple random sample of 1000 people from the ages of 15 to 44 found the following information about their age (in years) and who they live with (alone, with their spouse, or with other people). The data is in the table below. Age in Years 15 to 19 20 to 24 25 to 34 35 to 44 Total Who Alone 155 216 395 - 766 They Live With Spouse - - - - - With Others 328 335 - - 663 Total 483 551 395 356 1429
Kari H.
Here is the probability model for choosing a person at random and asking about their age and marital status: Age in Years 20-24 25-29 30-34 35-39 Never married 0.227 0.156 0.089 0.054 Married Widowed Divorced Separated 0.027 0.086 0.137 0.148 0.006 0.015 0.022 0.033 a) Explain why this is a legitimate finite probability model. b) Find the probabilities for the outcomes given below. You must describe your process to receive full credit. Only providing the correct answer will receive at most half credit. i) What is the probability that the person chosen is a 20-to-24-year-old who is married? ii) What is the probability that the person is 20-24 years old? iii) What is the probability that the person chosen is married? iv) What is the probability that the person chosen is 30 years old or older? v) What is the probability that the person chosen is or has been married?
Madhur L.
Choose at random a person aged 20 to 39 years. Ask their age and marital status (never married, married, or widowed/divorced/separated). Here is the probability model for 12 possible answers: Age in Years 20–24 25–29 30–34 35–39 Never married 0.227 0.156 0.089 0.054 Married 0.027 0.086 0.137 0.148 Widowed/divorced/separated 0.006 0.015 0.022 0.033 a) [2] Why is this a legitimate finite probability model? b) [2] What is the probability that the person chosen is a 20- to 24-year-old who is married? c) [2] What is the probability that the person is 20–24 years old? d) [2] What is the probability that the person chosen is married? e) [2] What is the probability that the person chosen is 30 years old or older?
Rosina D.
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